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Steve, you might looking at internal fuse of the board.
jk
>-----Original Message-----
>From: TechNet [mailto:[log in to unmask]] On Behalf Of
>Barmuta, Mike
>Sent: Friday, May 30, 2003 12:24 PM
>To: [log in to unmask]
>Subject: Re: [TN] Micro-inch to copper weight conversion...
>
>
>Steve: 1oz Cu foil on a finished outerlayer is typically 1300
>microinches. You got some pretty thin copper at 170
>microinches if the units and analysis are correct.
>
>
>Regards
>
>Michael Barmuta
>
>Staff Engineer
>
>Fluke Corp.
>
>Everett WA
>
>425-446-6076
>
>
>
>
>-----Original Message-----
>From: Steve Gregory [mailto:[log in to unmask]]
>Sent: Friday, May 30, 2003 9:13 AM
>To: [log in to unmask]
>Subject: [TN] Micro-inch to copper weight conversion...
>
>
>Hi All,
>
>I got my boards back from our fab vendor (the ones that had
>the trace thickness problem), and they sent the XRF
>measurements that they took. But they're in microinches, is
>there some conversion that you do to convert that to copper weight?
>
>Here's the measurements that I got:
>
> µin Cu
>1. 170.9
>2. 173.0
>3. 170.1
>4. 170.6
>
>Thanks in advance!
>
>-Steve Gregory- ---------------------------------------------------
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Technet Mail List provided as a free service by IPC using LISTSERV 1.8e
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the BODY (NOT the subject field): SIGNOFF Technet
To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL)
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Search the archives of previous posts at: http://listserv.ipc.org/archives
Please visit IPC web site http://www.ipc.org/html/forum.htm for additional
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